Document jyoyY2JGo04Qw6Q8b8mqpnYKR

'TYPEiCjaL. waterTcoBI Buft^fin^^S STRAIGHT TUBE-. ' BOOSTER STEAM COIL'--- ' Bulletin Available in a wide range of sizes and types for heating, cooling, air con ditioning and process, Aerofin is the modern standardized light-weight encased fan-system surface designed by fan engineers to meet present.and future requirements of this highly specialized field. All standard Aerofin units are furnished as completely encased units, ready for pipe and duct connections. The patented casings are built of pressed steel and are exceptionally strong and rigid to protect the unit from all strains of pipe connections and expansion or contraction in service. The casings are flanged on both faces, top and bottom, and templatepunched for bolting adjacent units together or for easy duct connection. Guarantee Aerofin is guaranteed, when properly installed and operated at pressures and temperatures not exceeding those specified, against failure or leakage due to faulty material or manufacture. The Aerofin Corporation will fur nish a new unit, fob car Syracuse, N. Y., or Kingston, Ontario, for replace ment of any unit found defective in either material or workmanship within one year from date of shipment of original unit, when such defective unit is returned to the factory at Syracuse, N. Y., or Kingston, Ontario. Extended Surface Exclusively Aerofin manufactures light-weight extended-surface heat exchangers ex clusively --'not as a side line or accessory. Modern manufacturing, research and engineering facilities give real meaning to die Aerofin guarantee. Aerofin ratings are accurate -- units may be safely installed to the full rated capacity. hot man v--'iSsj51 BOOSTER. COIL.;.... 'Bulletin HWB-50."^'-^fr Aerofin heat exchangers are rated according to accurate research labor atory test data and operate effi ciently at full rated capacity. 5.-.- New Patented Aerofin Surface with Smooth Fins Smooth-Fin Construction Provides Greater Capacity --Less Air Resistance With air resistance and turbulence caused by the corrugations in die oldstyle fins now eliminated, note how many more fins can be used per inch of tube length. Note the extremely low air friction of this new design. For optimum service, aluminum fins are spaced 14 fins per inch; copper, 12 fins per inch. Because of die low friction losses, high air velocities are entirely practical. This, combined with maximum heat transfer per sq ft of face area, results in extremely high heating or cooling capacity in relation to the available space. For lower temperature differences, the tubes can be spaced on wider centers as required, or fewer rows may be used. Aerofin Tapered Fin The wide contact base of the new Aerofin tapered fin conducts suffi cient heat between fin and tube to make the entire fin effective transfer surface. It is not necessary to crimp the fin to provide the required con tact surface. Saa- Bfif Hr U^gy,.n m REMOVABLES HEADER1?COl|| 'Etaa- BulletiniR-50 fSP TYPE D DIRECT EXPANSION-COIL"! Bulletin D-51 PLEXITUBE^ STEAM COltJ] Bulletin B-5 Conventional Straight Fin The relatively small amount of heat conducted by the small contact sur face means that only a portion of the fin is effective heat transfer sur face. Such fins are generally crimped to provide greater contact surface. HIGH PRESSURE STEAM COIL Bulletin 1